para·​thi·​on ˌper-ə-ˈthī-ən How to pronounce parathion (audio)
: an extremely toxic insecticide C10H14NO5PS

Examples of parathion in a Sentence

Recent Examples on the Web The pesticides found in the highest amounts included chlorpyrifos, methyl parathion and DDT. Wired Staff, WIRED, 12 May 2004

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'parathion.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


para- + thiophosphate + -on entry 1

First Known Use

1947, in the meaning defined above

Time Traveler
The first known use of parathion was in 1947

Dictionary Entries Near parathion

Cite this Entry

“Parathion.” Dictionary, Merriam-Webster, Accessed 18 May. 2024.

Medical Definition


para·​thi·​on ˌpar-ə-ˈthī-ən, -ˌän How to pronounce parathion (audio)
: an extremely toxic thiophosphate insecticide C10H14NO5PS

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